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3 Messages

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224 Points

Mon, Dec 18, 2017 5:24 AM

Closed

Lightroom CC: Slow performance and scrolling - iMac 2017

Hello there.

I have a 2017 i7 4.2Ghz iMac with 24GB ram and the 580 Pro 8GB graphics card, and the performance of the new Lightroom CC is at certain points very very bad. 

Scrolling through the photos is an pain, its very slow and choppy, and if I scroll a bit faster, the program gets hang on the scrolling direction I was scrolling for some seconds. If I reduce the window size, the scroll gets smother (not perfect). Which makes me think that the program is not optimized, at all, to retina displays. Any album with more than 30 photos and I'm spending more time scrolling than editing. And going to the "all photos" tab is not an option.

Anyone experiencing this? Any temporary fix? I notice that if I change the grid view, it gets a bit better, but not by much.

Plus, some edits, like the brush edits, are also very slow to take effect. When I'm painting with the brush it lags a lot behind my current cursor position. 
It's a bit disappointing because, despite not being 100% smooth, I have a better performance on lots of Lightroom functions on my almost 7 years old MacBook Pro without a Retina display.

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Responses

8 Messages

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172 Points

3 years ago

I have the exact same problem. LR Classic works just fine on my macbook (albeit mine has a retina display), but on my brand new Imac it is just unbearable.

1 Message

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66 Points

3 years ago

I am also experience this issue. Purchased a new iMac to use with Lightroom and am seeing significantly better performance on my 5 year old MacBook Air....

4 Messages

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172 Points

3 years ago

Only as a test, try to disable graphics card acceleration. If LR goes faster, you will know that the issue is GPU related at least. It happens on some GPUs (don't know why though)

8 Messages

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172 Points

3 years ago

I actually managed to find the problem. It's LR itself. Lightroom apparently cannot handle the 5k screen well. Change your display to scaled (largest possible) and make sure your thumbnails in LR are quite big. Watch the magic happen. I'm getting a way better performance this way. Good luck!

15 Messages

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208 Points

Joeri! Bravo!!!!  This work around worked wonders for me on my 5K iMac!! This is fantastic. 

8 Messages

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172 Points

You are very welcome! I'm just so happy I could share this information with everyone here!

16 Messages

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194 Points

Did not work for me. No matter what scale setting I choose it's very slow and sluggish.

8 Messages

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172 Points

Really sorry to hear that, Raphael! I hope you find a different solution!

5 Messages

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100 Points

Is your graphics processor switched on in preferences? Adobe kept switching it off for me when we did screen shares, but I switched it back on prior to doing what Joeri advised and so far its been much better, hope it can get sorted I can totally relate its been so dreadful to work with the software in that condition!

3 Messages

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120 Points

3 years ago

Are they going to make a fix for this so Imac owners don't have to change their screens? These are expensive computers that speaknig for myself, I got with lightroom and photoshop in mind. I'm having the same problem as everyone above and it's March 7. Clearly there's no rush. 

152 Messages

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3.4K Points

3 years ago

For a while I was using a maxed out 13” MacBook Pro. I too noticed scrolling in grid view to be a bit choppy. Not bad, but not as smooth as I’d hope.

I switched to a 10.5” iPad Pro. LRCC screams on it. Scrolling is VERY fast and smooth. Much faster than the MBP

Monty

12 Messages

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334 Points

2 years ago

Is there any update on this? It seems absolutely crazy that my maxed out dGPU MacBook Pro cannot scroll through photos, and my iPad can do it just fine. Has any optimisation been done at all?

6 Messages

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130 Points

2 years ago

The 5k display are great but always a problem with some apps. But the display is not new and I really wonder why Adobe didn't fixed this issue! I can't work with Lightroom. Changing color temperature last over 5 sec to take effect ... I wonder why Adobe did not take their users/clients seriously ... So many bugs and wishes and it often takes years to get an answer ... or never. And I always landing in a new looking support forum instead of have a chance of directly contact via email ... Frustrating ...

Champion

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5.8K Messages

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102.3K Points

> Changing color temperature last over 5 sec to take effect

That's not normal, even on a 5K. Is Use Graphics Processor enabled in Preferences > Performance?

1 Message

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62 Points

I've been using Adobe products since the late 80's, and they've never been responsive to users needs. But they did develop two awesome pieces of software.

6 Messages

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130 Points

Graphics Processor (AMD Radeon R9 M380) was already enabled ...

5 Messages

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100 Points

I have a maxed out iMac 5k 27" retina iMac late 2015 model and LR is terrible on it!! I have tried everything and I mean everything, Did all the common Lr preferences tweaks, reinstalled LR and Mac OS, cleared all catalogues, optimised catalogues, maxed my iMacs ram, had multiple screen shares with apple who says its Adobes issue....had multiple screen shares with adobe that still won't give me answers....every tool I use in LR takes 10-15 seconds to show the adjustment!! I can't even zoom in and out fast....the time it takes to edit my work is costing my business money and I honestly have no idea what else to do...as anyone got any answers yet?? :-(

8 Messages

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172 Points

I actually managed to find the problem. It's LR itself. Lightroom apparently cannot handle the 5k screen well. Change your display to scaled (largest possible) and make sure your thumbnails in LR are quite big. Watch the magic happen. I'm getting a way better performance this way. Good luck!

4 Messages

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198 Points

2 years ago

Just chiming in that I have the same issue. On my 2017 iMac with 24gb RAM, 5K screen, scrolling performance is dismal. If I scroll it stutters and goes slowly and the inputs buffer until Lightroom becomes unresponsive as it continues scrolling. On my three year old PC it's pretty buttery smooth, as is Lightroom on iPad. Apple Photos scrolls smoothly with the same pictures too, so it's not the machine...

9 Messages

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94 Points

2 years ago

Having the same problem here. Top of the range iMac. Scrolling is horrendous.

15 Messages

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208 Points

Top of the range iMac? You mean an iMac Pro then? Have you tried the solution above? Have you disabled GPU acceleration in the preferences menu? 

16 Messages

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194 Points

Yes, Ben Fletcher, we tried that over and over again.

9 Messages

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94 Points

Heya Ben. Not a pro. Just top of the range iMac. I’ve disabled GPU, enabled GPU. Set huge caches on an external scratch SSD. I’ve upgraded both internal drives to SSDs. Read and write speeds of 1400 and 800 respectively. This machine is fantastically fast with every other application except LightRoom. I have a 4GB GPU and even with a brand new catalogue with say 100 jpgs in it, scrolling is horrendous.

Also. My MacBook Pro (2013) worked perfectly. At full retina resolution and with 2 displays connected.

16 Messages

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194 Points

Paul, have you tried Lightroom CC Classic before? If yes, have you had the same performance issues with that version or did it run smoothly?

9 Messages

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94 Points

Hello! Yup. I run both. Classic is the most problematic.